Evaluation of occupational and patient dose in cerebral angiography procedures

Lunelli, N.; Khoury, Helen J.; Andrade, Gustavo; Borrás, Cari

doi:10.1590/s0100-39842013000600007

Cited by 6 publications

(7 citation statements)

References 26 publications

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“…It is verified that the results obtained in the current study for staff 1 (the closest one) are much higher than in studies used for comparison, even the one performed in brain angiography (Lunelli et al, 2013) (an interventional procedure).…”

Section: Estimate Of Staff's Equivalent Dosessupporting

confidence: 80%

“…Both types of dosimeters were encapsulated in pairs in numerically identified plastic envelopes (as in Lunelli et al, 2013) made of the same intraoral film package used in dental radiology. This material allows the dosimeter to be sheltered from light and can be used on the patient in the region of the primary beam without causing any image distortion.…”

Section: Methodsmentioning

confidence: 99%

“…There are few studies about occupational doses in pediatric diagnostic fluoroscopy, especially in upper GI procedures (Coakley et al, 1997;Kemerink et al, 2000;Merbahi and Rouhani, 2008;Ubeda et al, 2010;Lunelli et al, 2013). To limit stochastic effects, the International Commission on Radiological Protection (ICRP) and the National Health and Medical Research Council (NHMRC) recommend annual equivalent doses for some organs and/or areas.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Pediatric patient and staff dose measurements in barium meal fluoroscopic procedures

Filipov

Schelin

Denyak

et al. 2015

Radiation Physics and Chemistry

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Section: Estimate Of Staff's Equivalent Dosessupporting

confidence: 80%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Pediatric patient and staff dose measurements in barium meal fluoroscopic procedures

Filipov

Schelin

Denyak

et al. 2015

Radiation Physics and Chemistry

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“…6 These combined factors may result in radiation doses that fall within permissible ranges 6 or potentially exceed the established safety thresholds for physicians and patients. 7 The effects of radiation include both stochastic and deterministic effects. Stochastic effects occur to a varying degree depending on the accumulated radiation dose received.…”

Section: Introductionmentioning

confidence: 99%

Radiation dose in radiologist from cerebral angiography using optically stimulated luminescence dosimeter

Somtom,

Somboot,

Awikunprasert

et al. 2024

JAMS

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Background: The number of cerebral angiography procedures is increasing, resulting in higher X-ray radiation doses received by radiologists. Consequently, understanding the radiation doses received by radiologists and the accumulation of radiation in control rooms is crucial for guiding prevention strategies against radiation hazards. Objectives: This study aimed to measure and evaluate radiation doses to the hands, lenses of the eyes, and thyroids of radiologists performing cerebral angiography procedures, as well as to measure the accumulated radiation dose in the control room. Materials and methods: OSL dosimeters were placed on the eyeglass frames, thyroids, hands, and legs of radiologists performing 20 cerebral angiography procedures, as well as on the wall and window of the control room. Results: Radiologists’ average radiation doses were measured at specific body parts as follows: left eye (49 µSv), right eye (15 µSv), left hands (34 µSv), right hands (16 µSv), left legs (27 µSv), right legs (7 µSv), and thyroid glands (14 µSv). Notably, the received doses remained well within the maximum radiation dose limit established by the International Commission on Radiological Protection (ICRP). When calculating the maximum number of procedures that can be performed annually, we based it on the limit of the radiation dose that the eyes’ lenses should not exceed. Our findings revealed that the permissible number of procedures determined by the lens radiation dose limit, should not surpass 405 cases annually (equivalent to 34 cases per month). The radiation dose from therapeutic angiography procedures was discovered to be up to 5 times higher than that from diagnostic angiography procedures. The maximum accumulated radiation dose in the control room was 1.18 µSv/hr, which remained below the limit of the Department of Medical Sciences (< 3 µSv/hr). Conclusion: Radiologists receive less radiation from cerebral diagnostic angiography than therapeutic angiography. Organs on the left side were exposed to greater radiation levels than those on the right side. Wearing radiation protection devices during each procedure can reduce radiation exposure and mitigate long-term effects on radiologists. It is recommended to monitor and calculate the accumulated radiation dose of workers to ensure their exposure remains within safety limits.

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“…Many studies have demonstrated that, despite the benefits of these procedures, some deterministic effects can occur due to their complexity and long fluoroscopy times [1]. There are some studies of occupational radiation exposure [1,2] and some other recommendations regarding protective wear, especially for the performing clinician's eyes [3]. Recently, concern has grown especially for anaesthesiologists, as they are not considered occupationally exposed personnel.…”

Section: Introductionmentioning

confidence: 99%

Estimation of occupational radiation doses in neuroendovascular procedures

et al. 2021

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To estimate the mean effective dose per procedure with multiple dosimetry, to calculate the annual effective dose to personnel working in neuroendovascular procedures and compared with methods reported in the literature and with national and international limits. The radiation dose to personnel was monitored in 20 procedures classified as diagnostic or therapeutic. During each procedure, the equivalent dose to eyes, thyroid, under and over the lead apron at chest level, hands, gonads and knees was measured with lithium fluoride thermoluminescent dosimeter chips (TLD-100). Estimations of the annual effective dose from different methods found in literature that use one or two dosimeters and from this work were compared. Also, a comparison was made with the safety limits recommended in national and international regulations. Radiation exposure to eyes, thyroid, gonads and knees is relevant to the effective dose, and therefore to the annual effective dose estimations. Personnel position is important, as the performing physician, who is closer to the patient, received the highest dose measured. In particular, this was observed in the equivalent dose received over the apron. However, the equivalent dose to the right eye was higher for neuroanaesthesiologists than for performing physicians due to their position relative to the patient. In general, effective doses estimated using one- and two-dosimeter methods found in the literature were, respectively, lower and higher than those obtained with the ten-dosimeter method in this work. The annual effective doses to personnel estimated with the multiple dosimetry algorithm ranged from 1.3 to 1.5 mSv y−1 and are within the national and international limits.

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Evaluation of occupational and patient dose in cerebral angiography procedures

Cited by 6 publications

References 26 publications

Pediatric patient and staff dose measurements in barium meal fluoroscopic procedures

Pediatric patient and staff dose measurements in barium meal fluoroscopic procedures

Radiation dose in radiologist from cerebral angiography using optically stimulated luminescence dosimeter

Estimation of occupational radiation doses in neuroendovascular procedures

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